Air-conditioning system



5,1950 c. E. DAVES 2,519,126

AIR CONDITIONING SYSTEM Filed May 28, 1948 5 sheets-sheet 1 Charles E. Davis INVENTOR.

Fig; I.

C. E. DAVIS AIR CONDITIONING SYSTEM Aug. 15, 1950 3 Sheets-Sheet 2 Filed May 28, 1948 Chan es? E. Davis INVENTOR.

9 BY flwdofiim Aug..l5, 1950 c, DAVIS 2,519,120

AIR CONDITIONING SYSTEM Filed May 28, 1948 s sheets-sheet 5 l ha Fig. 5.

86 I Char/es E Dav/s INVENTOR.

(puny 8m Patented Aug. 15, 1950 UNITED STATES PATENT OFFICE AER-CONDITIGNING SYSTEM Charles E. Davis, Lake Orion, Mich.

Application May 28, 1948, Serial N 0. 29,873

(Cl. 2l939) Claims. 1

This invention relates to new and useful improvements in air conditionin systems and the primary object of the present invention is to pro vide a novel and improve-d. structure for controlling the temperature of various rooms of a build in in a very convenient manner.

Another important object of the present invention is to provide an air conditioning system including an air delivery housing and novel and improved means for selectively introducing warm or cool air into the delivery housing.

Another object of the present invention is to provide an air conditioning system including a radiator housing having a plurality of louvers and means responsive to heat within the housing for actuating the louvers to deflect or direct air therefrom.

Another object of the present invention is to provide an air conditioning system including a plurality of refrigerant holding coils and novel and improved means for directing air over the coils to a discharge area.

Another object of the present invention is to provide an air conditioning system including a radiator housing, a group of liquid holding coils mounted in the housing and novel and improved means for heating the liquid in said coils.

A further object of the present invention is to provide a device for conditioning air that is extremely small and compact in structure and which may be quickly and readily installed in a building structure to function efficiently for either heating or cooling a room or a group of rooms.

A sti 1 further aim of the present invention is to provide a device for conditioning air that simple and. practical in construction, reliable in use, neat and attractive in appearance, relatively inexpensive to manufacture, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as fully hereinafter described and claimed, reference bein had to the accompanying drawings forming part hereof, wherein l-. e numerals refer to like parts throughout, and in which:

Figure 1 is a fragmentary perspective view of a building structure and showing the present invention applied thereto, and with parts of the present invention broken away and shown in section;

Figure 2 is an enlarged sectional view take substantially in the direction of section line ll-2 of Figure 1;

Fi ure 3 is a front elevational View of the radiator housing used in conjunction with the present invention;

Figure d is a longitudinal. vertical sectional view taken substantially on the plane of section line E-4 of Figure 2;

Figure 5 is a sectional View taken substantially 2 on the plane of section line 5-5 of Figure 1, and;

Figure 6 is a diagrammatic view showing the circuit system used in conjunction with the pres-- ent invention.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disclosed a preferred embodiment of the present invention, the numeral lo represents a radiator shield or housing in which there is suitably mounted a radiator i2 having an upper chamber it, side chambers i5, a lower chamber it and a plurality of coils or connecting pipes 58 between the upper and lower chambers i i and It. Supported by a bracket which is disposed within the lower chamber it, is a conventional electrical heating unit which is provided with a well-known thermostatic switch 24. Connected to the lower chalnhe' it of the radiator 52, is an inlet pipe 26 that provided with a manually operated valve for controlling the amount of liquid that enters chamber 56. Extending from the upper chamber i i and communicating with the lower ch .mber i 6, is a pair of return pipes and 32.

The forward wall at oi th housing is is provided with an opening 35 having a plurality of spaced parallel, horizontally disposed pivot bars 38 that pivotally support louvers or bafile strips the inner ends which are connected by a wire or actuating cord 42.

Mounted within the housing, is a conventional thermostatic control M having a heat responsive ring and an actuating arm 48 which is connected to the cord d2. As the air within the radiator housing remains in a warm state, the arm =33 is in a lowered position and the baffle strips to are opened to permit warm air to pass outwardl from the housing l2. However, when the air within the housing 62 reaches a predetermined low temperature, the arm will be raised to pivot the bafile strips to to a closed position.

The numeral 53 represents a fan housing having a slidable door 52 and an opening in its lower wall. Fixed to the lower wail of the fan housing 55 is a liquid receiving chamber or corn tainer 55 having a drain plug 58. Loosely mounted within the container 53, is coiled tube 53 havin an inlet end 62 and an outlet end 84 which are connected to a suitable source of refrigerant solution.

Fixed to the container 56 and positioned within the housing 55 is a mounting 6 5 that supports a preferably electrical motor or fan 68 having a fan blade '53. Entering the housing at one end of a liquid pipe (not shown) is a delivery nozzle '52 supplying liquid such water to the container This nozzle '52 is provided with a conventional float valve mechanism V which will cut 013? the p y of liquid through the nozzle 32 ata predetermined depth in the container in order 3 to prevent liquid from passing outwardly from the housing as when the door 52 is opened.

In practical use of the present invention, the fan housing 50 is connected to and communicates with a plurality of conduits or air ducts 16 which are preferably disposed between the floor joists 16 of a building structure 89. These air ducts l6 communicate with one or more radiator housings 10, so that a flow of air will be forced through the ducts 16 by the fan 16, into the housing or housings l0 and outwardly through the openings 36 in the said housing. One of the ducts 16 is connected to an open grill 82 that is positioned on the floor of the structure 80 or on the baseboard of the room in which the radiator housings 16 are disposed.

It is preferred that the motor 68 be connected directly to a pair of circuit lines 86 by conductive wires 88 having a switch 99, and that the lines 86 be connected to each of the heating units 22. A switch 92 is provided for each of the heating units so that the same may be controlled independently of each other.

For heating of a room, the refrigerant solution is first removed from the coils 6|], the heating coils 22 are energized, and the motor 68 actuated to direct a flow of air over the heated coils or pipes 86, which air will pass through the opening 36 in the housing It). When the temperature of the air leaving the housing l6 reaches a predetermined low temperature, the thermostat M will be actuated to close the louvers 40 thus preventing air in the room from entering the housing I!) when the switch 90 is activated to open the circuit to the fan. The air in the room will in this manner remain in a substantially con-,-

. stant temperature during use of t e present heating system. The water or suitable liquid that is placed in the container 56 evaporates and is drawn by the fan blade 19 into and through the conduit 16 and housing I!) to properly moisturize the air entering the room.

To reduce the temperature of a room, the heating units 22 are de-energized and the fan actuated to direct a flow Of cool air through the conduit 15 and outwardly from the opening 36 in the housing I 0.

To further reduce the temperature of a room, the refrigerant solution is placed in. the pipes 62 and 64 to retain the coils 65} in a co d state, so

that the air directed by the motor 69 and fan blade 19 will be relatively low in tem erature. Obviou ly, the system shown in the drawin s may be applied to a plurality of rooms of a house using any suitable number of radiator housings and heating coils to e fectively and efiicient y heat the room and which will also cool the room when such is desired.

In view of the foregoing descripti n taken in conjunction with the accompanving drawings it is believed that a clear understandin of the construction. operation and advantages of the device will be quite a parent to those skilled in this art. A more detailed description is accordingly deemed unnecessary It is to be understood, however, that even though there is herein s own and described a preferred embodiment of the invention t e same is susceptible to certain changes fullv comprehended by the spirit of the invention as herein described and the scope of t e appended claims.

Having described the invention what is claimed as new is:

1. An air con itioning system for building structures comprising a group f radiator housings, liquid holding coils mounted in each of said housings, means for heating liquid in said coils, louvers adjustably carried by each of said housings, means for directing a flow of air over the liquid holding coils, and means responsive to heat within the housings for actuating said louvers into and out of an open position, said means for directing a flow of air over the liquid holding coils comprising a fan housing and a group of air ducts extending between said radiator housings and said fan housing.

2. An air conditioning system for building structures comprising a group of radiator housings, liquid holding coils mounted in each of said housings, means for heating liquid in each of said coils, louvers adjustably carried by said housings, means responsive to heat Within the housings for regulating the louvers of each housing, a fan housing, air ducts connecting said fan housing to each of said radiator housings, means for introducing amoisture to air within the fan housing, and switch means for controlling said heating means.

3. The combination of claim 2 wherein said means for introducing a moisture to air within the fan housing includes a liquid container communicating with the fan housing and forming the lower portion of the fan housing, and a fan mounted in said housing for directing a flow of air into the air ducts.

4. An air conditioning system for buildin structures comprising a group of radiator housings mounted in selected rooms of a building structure, liquid holding coils mounted in each of the radiator housings, an electrical heating unit disposed within each radiator housing for heating the coils of each radiator, a thermostatic switch for each of the heating units, said thermostatic switches being mounted within the radiator housings, each of said radiator housings having openings therein, louvers carried by each of said radiator housings and in registry with said openings, heat responsive members disposed within said radiator housings and connected to the louvers for actuating the latter, a fan housing disposed remotely from the radiator housings, air ducts extending from the fan housing and leading to the radiator housings, a fan mounted in the fan housing for impelling air through the ducts and into the radiator housings, a liquid holding receptacle mounted on said fan housing, means for introducing a liquid into the receptacle, a valve controlling the supply of liquid to the receptacle, and a float responsive to the level of a liquid in the receptacle for actuating the valve.

5. The combination of cla m 4 and a floor grille, and a further air duct extend ng from the floor grille and leading to the fan housing, said further air duct having an outlet entering the fan housing beneath the fan for use of the fan in sucking air through the further air duct.

CHARLES E. DAVIS.

REFERENCES CITED ihe following references are of record in the file of this patent:

UNITED STATES PA IE NTS Number Name Date 2,110,025 Ridge Mar. 1, 1938 2,131,295 Persons Sept. 27, 1938 2,146,845 Payne Feb. 14, 1939 2,244,172 Novak June 3, 1941 

